KR102609808B1 - Device for removing soil and dust of drilling equipment - Google Patents

Abstract

The present invention relates to a device for removing dust and floating soil from a boring machine that can easily remove dust and floating soil generated during drilling operations by using air and water spray.
That is, the present invention installs a dust and floating soil removal device that sprays water and air on the lower auger of the drilling machine, and sprays water and air at a predetermined pressure toward the floating soil that comes up on the wings of the screw while the screw is rising. The aim is to provide a dust and floating soil removal device for a drilling machine that can easily remove floating soil from a screw to prevent safety accidents and scattering of dust by allowing it to be sprayed.

Description

Device for removing soil and dust of drilling equipment}

The present invention relates to a device for removing dust and floating soil from a drilling machine, and more specifically, to a device for removing dust and floating soil from a drilling machine that uses air and water jets to easily remove dust and floating soil generated during the drilling operation of a boring machine. It is about a toe removal device.

In general, drilling work using a boring machine is performed at various building and construction sites to reinforce soft ground and perform foundation construction.

The attached Figure 1 is a schematic diagram showing the configuration of a drilling machine.

As shown in FIG. 1, the perforator 10 includes a vertical leader 11 that serves as a kind of support, an upper auger 13 mounted on the upper end of the vertical leader 11, and the vertical leader 11. ), a lower auger (14) mounted in the middle part, a screw (12) rotatably mounted on the upper auger (13), and a screw (12) mounted on the lower auger (14) to protect and move the screw (12) up and down. It is composed of a casing pipe (15) that guides the.

The upper auger 13 includes a driving device that provides rotational power to the screw 12, and the casing pipe 15 mounted on the lower auger 14 protects the screw 12 and guides its vertical movement. In addition to its function, it goes into the soil and protects it from collapsing.

When drilling to a predetermined depth is completed by the drilling machine 10 configured as above, the screw 12 is raised for the next stage of drilling. At this time, the soil is also raised along with the screw 12 being lifted. The soil rising upward along (12) is called floating soil.

At this time, most of the floating soil coming up with the screw 12 hits the upper end of the lower auger 14 and scatters around it.

Accordingly, a lot of dust is generated during the drilling operation by the upper auger 13 and the screw 12, and when the screw 12 is raised, the floating soil rises to the ground together with the screw 12 and scatters around. In this case, it may act as a risk factor for ground workers and equipment.

Moreover, during the operation of the drilling machine, the screw 12 can be lifted up to 20 m to 40 m from the ground with a part of the floating soil resting on the wings of the screw 12 during the lifting (pulling) of the screw 12. Therefore, the screw 12 In addition, floating soil floating up to 20m to 40m above the ground may be scattered and fall to the ground due to the small vibration movement of the screw or wind, and the falling floating soil may cause a safety accident in which workers on the ground are injured or killed. and surrounding equipment may be damaged.

In addition, the floating soil that comes up when the screw 12 is raised acts as dust scattered to the surroundings, causing environmental complaints and adversely affecting the breathing of workers.

Registered Patent No. 10-1939498 (2019.01.10)

The present invention was devised to solve the above-described conventional problems, by installing a dust and floating soil removal device that sprays water and air on the lower auger of the drilling machine, so that the screw rides on the wings of the screw while it is rising. The dust and floating soil removal device of the drilling machine allows water and air to be sprayed at a predetermined pressure toward the rising floating soil, thereby easily removing the floating soil from the screw to prevent safety accidents and scattering of dust. The purpose is to provide.

In order to achieve the above object, the present invention includes: a vertical leader, an upper auger mounted on the upper end of the vertical leader, a lower auger mounted on the middle part of the vertical leader, and a screw rotatably mounted on the upper auger. In the dust and floating soil removal device of a boring machine including a casing pipe mounted on the lower auger to protect the screw and guide the vertical movement, water is directed to the floating soil that comes up on the wing of the screw in the lower auger. An injection device is installed to inject air and air at a predetermined pressure, wherein the injection device includes: a circular pipe mounted on the upper end of the lower auger and spaced apart from the outer diameter of the screw at a predetermined distance; a supply pipe connected in communication with the circular pipe; A sprinkler connected to the supply pipe to supply water; An air compressor connected to the supply pipe to supply air; And it is mounted on the inner diameter of the circular pipe at predetermined intervals along the circumferential direction, and sprays the air supplied from the air compressor to the circular pipe via the supply pipe toward the floating soil and sprays air from the sprinkler via the supply pipe. Multiple spray nozzles that spray water supplied through a circular pipe toward the floating soil; It provides a dust and floating soil removal device for a drilling machine, characterized in that it consists of.

Preferably, the circular pipe of the injection device includes an upper circular pipe and a lower circular pipe that are connected to each other so as to be in communication, and is characterized in that it is stacked in two or more stages.

In particular, the spray nozzle has a structure in which a threaded portion fastened to the circular pipe is formed at one end, and a body portion having a hollow cone shape is integrally extended at the other end, and the body portion contains air and water. A plurality of injection holes, which are the final injection holes, are formed at equal intervals along the spiral direction, and a spiral guide groove is formed on the outer surface of the body portion to match the plurality of injection holes to induce a vortex of air and water. Do it as

By solving the above problems, the present invention provides the following effects.

First, water and air are sprayed at a predetermined pressure from a dust and floating soil removal device mounted on the lower auger of the drilling machine toward the floating soil that is raised on the wings of the screw during the screw's upward movement, thereby removing the floating soil along with the screw. The floating soil on the screw can be easily removed before going up to 20m to 40m from the ground, thereby preventing injury or death to ground workers due to falling floating soil, and preventing damage to surrounding equipment due to falling floating soil. Damage can be prevented.

Second, by spraying water toward the floating soil that comes up on the wings of the screw while the screw is rising, it is possible to prevent dust from the floating soil from scattering to the surrounding area, thereby preventing environmental complaints caused by dust in the surrounding area. Together, problems such as adverse effects on workers' breathing can be solved.

1 is a schematic diagram showing the configuration of a drilling machine;
Figure 2 is a schematic diagram showing a device for removing dust and floating soil of a boring machine according to an embodiment of the present invention;
Figure 3 is a schematic diagram showing a dust and floating soil removal device for a drilling machine according to another embodiment of the present invention;
Figure 4 is a schematic diagram showing a device for removing dust and floating soil of a boring machine according to another embodiment of the present invention;
Figures 5a and 5b are schematic diagrams showing a state in which the dust and floating soil removal device according to each embodiment of the present invention is mounted on a drilling machine;
Figure 6 is a schematic diagram showing an operating state in which floating soil and dust are removed by the dust and floating soil removal device according to the present invention;
Figure 7 is a cross-sectional view showing the structure of a spray nozzle in the dust and floating soil removal device of the drilling machine according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The attached FIGS. 5A and 5B are schematic diagrams showing a state in which the dust and floating soil removal device according to each embodiment of the present invention is mounted on a drilling machine.

As shown in FIGS. 5A and 5B, the perforator 10 includes a vertical leader 11 that serves as a kind of support, an upper auger 13 mounted on the upper end of the vertical leader 11, and the vertical leader 11. A lower auger (14) mounted in the middle of the leader (11), a screw (12) rotatably mounted on the upper auger (13), and a screw (12) mounted on the lower auger (14) to protect the screw (12). and a casing pipe 15 that guides the up and down movement.

The upper auger 13 includes a driving device that provides rotational power to the screw 12, and the casing pipe 15 mounted on the lower auger 14 protects the screw 12 and guides its vertical movement. In addition to its function, it goes into the soil and protects it from collapsing.

When drilling to a predetermined depth is completed by the drilling machine 10 configured as above, the screw 12 is raised for the next stage of drilling. At this time, the soil rises along with the raised screw 12, The soil that comes up along the wings of the screw (12) is called floating soil.

During the operation of the drilling machine, the screw 12 can be lifted up to 20 m to 40 m from the ground with a portion of the floating soil resting on the wings of the screw 12, and thus, together with the screw 12 Floating soil floating up to 20m to 40m above the ground may be scattered and fall to the ground due to small vibration movements of the screw or wind. The falling floating soil may cause a safety accident in which workers on the ground are injured or killed. , peripheral equipment may be damaged.

Accordingly, the present invention removes the floating soil from the screw by spraying water and air at a predetermined pressure toward the floating soil that comes up on the wings of the screw while the screw is rising, and at the same time prevents the dust from the floating soil from scattering to the surroundings. The main point is to prevent it.

For this purpose, a spray device 100 is installed on the lower auger 14 to spray water and air at a predetermined pressure toward the floating soil that is raised on the wings of the screw 12.

As shown in FIG. 2, the injection device 100 includes a circular pipe 110 mounted on the upper end of the lower auger 14 and spaced apart from the outer diameter of the screw 12 at a predetermined distance, and the circular pipe 110. A supply pipe 120 connected in communication with the pipe 110, a sprinkler 130 connected to the supply pipe 120 to be able to supply water, and air connected to the supply pipe 120 to be able to supply air. It may be composed of a compressor 140 and a plurality of injection nozzles 150 mounted on the inner diameter of the circular pipe 110 at predetermined intervals along the circumferential direction.

At this time, the sprinkler 130 includes a water pump for pumping and supplying water from a water supply source to the supply pipe 120.

Accordingly, the compressed air generated by driving the air compressor 140 is supplied to the circular pipe 110 via the supply pipe 120, and then floats on the wing of the screw 12 from the injection nozzle 150. It can be sprayed toward the soil, and at the same time, the water discharged by driving the sprinkler 130 is supplied to the circular pipe 110 via the supply pipe 120 and then sprayed from the spray nozzle 150 to the screw 12. ) can be sprayed toward the floating soil placed on the wings of the machine.

As shown in FIG. 3, the injection device 100 includes a circular pipe 110 mounted on the upper end of the lower auger 14 and spaced apart from the outer diameter of the screw 12 at a predetermined distance, and the circular pipe 110. An air compressor 140 connected in communication with the pipe 110 to enable supply of air to the supply pipe 120 and the supply pipe 120, and an air compressor 140 connected to the inner diameter of the circular pipe 110 in the circumferential direction. Accordingly, it may be composed of a plurality of injection nozzles 150 mounted at predetermined intervals.

Accordingly, only the compressed air generated by driving the air compressor 140 is supplied to the circular pipe 110 via the supply pipe 120 and then floats on the wing of the screw 12 from the injection nozzle 150. It may be sprayed toward the soil.

As shown in FIG. 4, the injection device 100 includes a circular pipe 110 mounted on the upper end of the lower auger 14 and spaced apart from the outer diameter of the screw 12 at a predetermined distance, and the circular pipe 110. A supply pipe 120 connected in communication with the pipe 110, a sprinkler 130 connected to the supply pipe 120 so as to supply water, and a water sprayer 130 connected to the inner diameter of the circular pipe 110 in the circumferential direction. It may be composed of a plurality of injection nozzles 150 mounted at predetermined intervals.

Accordingly, only the water discharged by driving the sprinkler 130 is supplied to the circular pipe 110 via the supply pipe 120 and then the floating soil placed on the wing of the screw 12 from the spray nozzle 150. It can be sprayed towards.

Preferably, the circular pipe 110 of the injection device 100 includes an upper circular pipe 111 and a lower circular pipe 112 that are communicated with each other, as shown in FIG. 5B, and has two or more stages. It can be constructed by layering.

Accordingly, as the circular pipe 110 having the spray nozzle 150 on the outer diameter of the screw 12 is stacked and arranged in two or more stages, water and air are sprayed toward the floating soil placed on the wings of the screw 12. The spray nozzles 150 for this purpose can be arranged in a two-stage stack, and thus the floating soil placed on the wings of the screw 12 can be more easily removed.

Meanwhile, as shown in FIG. 7, the injection nozzle 150 of the injection device 100 has a threaded portion 151 fastened to the circular pipe 110 at one end, and is hollow and conical at the other end. The body portion 152 having a shape may be provided in a structure in which the body portion 152 is integrally extended.

In particular, as shown in FIG. 7, a plurality of injection holes 153, which are holes through which air and water are finally sprayed, are formed through the body portion 152 of the injection nozzle 150 at equal intervals along the spiral direction, and the body A spiral guide groove 154 that coincides with the plurality of injection holes 153 is formed on the outer surface of the unit 152 to induce a vortex of air and water.

Accordingly, the air and water supplied from the circular pipe 11 into the body portion 152 of the injection nozzle 150 are discharged to the outside through the plurality of spray holes 153 having a spiral arrangement, and then the body portion It can be sprayed toward the floating soil while forming a vortex (vortex) along the spiral guide groove 154 formed on the outer surface of (152).

Therefore, the air and water discharged from the injection nozzle 150 while forming a vortex are evenly spread and sprayed onto the floating soil placed on the wings of the screw 12, so that the floating soil can be more easily detached and removed from the screw. .

Here, the operating flow for the dust and floating soil removal device configured as described above is as follows.

The attached Figure 6 is a schematic diagram showing an operating state in which floating soil and dust are removed by the dust and floating soil removal device according to the present invention.

As shown in FIG. 6, during the drilling operation of the drilling machine, the casing pipe 15 mounted on the lower auger 14 enters the inside of the soil layer to protect the soil from collapsing, and a screw ( 12) rotates to perform the drilling operation.

After the drilling operation of the screw 12 is completed, the screw 12 rises along the casing pipe 15, and while the screw 12 is rising, a portion of the floating soil is placed on the wings of the screw 12. You may float to the ground.

At this time, the compressed air generated by driving the air compressor 140 is supplied to the circular pipe 110 via the supply pipe 120, and then floats on the wing of the screw 12 from the injection nozzle 150. It can be sprayed toward the soil, and at the same time, the water discharged by driving the sprinkler 130 is supplied to the circular pipe 110 via the supply pipe 120 and then sprayed from the spray nozzle 150 to the screw 12. ) can be sprayed toward the floating soil placed on the wings of the machine.

Accordingly, by spraying air and water at a predetermined pressure toward the floating soil placed on the wings of the screw 12, the wings of the screw 12 are blown before the floating soil rises up to 20 m to 40 m from the ground along with the screw 12. Floating soil and dust placed on the can easily fall off and be removed.

In this way, by easily removing the floating soil on the screw with the pressure of water and air before the floating soil rises up to 20m to 40m from the ground along with the screw, it is possible to prevent injury or death to ground workers due to falling floating soil. It can prevent damage to surrounding equipment due to falling floating soil, and prevent dust from floating soil from scattering to the surrounding area.

Meanwhile, a coating layer may be formed on the screw 12 to improve weather resistance and wear resistance of the metal surface.

The coating materials for this coating layer include 29% by weight of triphenyl propane triglycidyl ether, 22% by weight of hydrobenzotriazole, 11% by weight of hafnium, 14% by weight of organic acid magnesium, 8% by weight of titanium oxide (TiO2), and aluminum oxide ( It consists of 11% by weight of AIO2) and 5% by weight of solvent, and the coating thickness can be 8㎛.

Triphenyl propane triglycidyl ether and hydrocybenzotriazole play a role in corrosion prevention, weather resistance, and discoloration prevention, and hafnium is a transition metal element with wear resistance and weather resistance, and plays a role in having excellent water resistance and corrosion resistance.

Organic acid magnesium plays a role in providing alkali resistance and sliding properties to the surface of the coating film, and titanium oxide and aluminum oxide are added for fire resistance and chemical stability.

The reason for limiting the ratio of the components and the coating thickness as above is that the present inventor analyzed the test results after repeated failures and found that the ratio showed the optimal weather resistance and abrasion resistance improvement effect.

Additionally, a contamination-resistant coating layer made of an anti-fouling coating composition may be applied to the spray hole 153 of the spray nozzle 150 to improve contamination resistance.

The stain-resistant coating composition contains dioctylsulfosuccinate and amidoquat in a molar ratio of 1:0.01 to 1:2, and the total content of dioctylsulfosuccinate and amidoquat is 1 to 12 based on the total aqueous solution. It is weight %.

The molar ratio of dioctylsulfosuccinate and amidoquat is preferably 1:0.01 to 1:2. If the molar ratio is outside the above range, the applicability of the spray hole 153 may decrease or moisture adsorption on the surface may occur after application. There is a problem that the coating film is removed due to the increase in volume.

The dioctylsulfosuccinate and amidoquat are preferably used in an amount of 1 to 12% by weight in the total composition aqueous solution. If it is less than 1% by weight, there is a problem that the applicability of the spray hole 153 is reduced, and if it exceeds 12% by weight, Crystal precipitation is likely to occur due to an increase in coating film thickness.

Meanwhile, it is preferable to apply the stain-resistant coating composition to the spray hole 153 by spraying. In addition, the final coating film thickness of the spray hole 153 is preferably 900 to 2300 Å. If the thickness of the coating film is less than 900 Å, there is a problem of deterioration in the case of high temperature heat treatment, and if it exceeds 2300 Å, there is a disadvantage that crystal precipitation on the coating surface is likely to occur.

Additionally, this stain-resistant coating composition can be prepared by adding 0.1 mole of dioctylsulfosuccinate and 0.05 mole of amidoquat to 1000 ml of distilled water and then stirring.

The reason for limiting the ratio of the components and the thickness of the coating film to the above values is that the present inventor analyzed the test results after repeated failures and found that the ratio showed the optimal anti-contamination application effect.

Additionally, a vibration absorbing part made of rubber may be attached and installed at the lower end of the air compressor 140.

The vibration absorbing part may be made of a rubber material, and the raw material content ratio of this vibration absorbing part is 65% by weight of rubber, 10% by weight of orthonitrile biguanide, 9% by weight of factis, 9% by weight of carbon black, and 3C (N- Mix 7% by weight of PHENYL-N'-ISOPROPYL- P-PHENYLENEDIAMINE).

Orthonitrile biguanide is added to accelerate vulcanization, pactis is added to act as a softener, carbon black is added to increase or improve wear resistance, thermal conductivity, etc., and 3C (N-PHENYL-N' -ISOPROPYL- P-PHENYLENEDIAMINE) is added as an antioxidant,

Therefore, the present invention improves durability by increasing the elasticity, toughness, and rigidity of the vibration absorbing part, and thus increases the lifespan of the vibration absorbing part.

The tensile strength of the rubber material is 150Kg/㎠ and the elongation is 620%.

The reason for limiting the rubber material and components and limiting the mixing ratio values, etc. is that the present inventor analyzed the test results after repeated failures and found that the optimal effect was achieved with the above-mentioned components and numerical ratios. indicated.

In addition, a heat dissipation coating is applied to the outer case of the air compressor 140 to prevent the surface of the air compressor 140 from being excessively heated because the heat emitted from the air compressor 140 cannot be sufficiently dissipated. Heat can be released effectively.

This heat dissipation coating composition contains 19% by weight of xylene, 42% by weight of dimethylformamide, 8% by weight of chromium oxide, 12% by weight of graphite, 7% by weight of silicon nitride, 5% by weight of sodium hydroxide (NaOH), 3% by weight of titanium oxide, It consists of 4% by weight of fumed silica.

Xylene plays a role in protecting the heat dissipation coating layer, dimethylformamide acts as a binder resin, chromium oxide acts as wear resistance, graphite has excellent thermal conductivity and electrical properties, and silicon nitride improves strength and prevents cracking. , sodium hydroxide acts as a dispersant, titanium oxide serves for weather resistance, and fumed silica acts as an anti-settling agent.

It is preferable that the heat dissipation thickness is 8 to 1200㎛.

The reason for limiting the constituent materials and components and limiting the mixing ratio as described above is that the present inventor analyzed the test results after repeated failures and found that the optimal effect was achieved with the above-mentioned constituents and numerical ratio. indicated.

10: puncher
11: vertical leader
12: screw
13: Upper auger
14: Lower auger
15: Casing pipe
100: injection device
110: round pipe
111: upper circular pipe
112: lower circular pipe
120: supply pipe
130: sprinkler
140: Air compressor
150: Spray nozzle
151: threaded part
152: body part
153: spray hole
154: Information home

Claims (3)

A vertical leader (11), an upper auger (13) mounted on the upper part of the vertical leader (11), a lower auger (14) mounted on the middle part of the vertical leader (11), and the upper auger (13) The dust and floating soil removal device of the drilling machine includes a screw 12 rotatably mounted on the lower auger 14 and a casing pipe 15 that protects the screw 12 and guides its vertical movement. Because,
A spray device 100 is installed on the lower auger 14 to spray water and air at a predetermined pressure toward the floating soil that is raised on the wing of the screw 12,
The injection device 100:
A circular pipe (110) mounted on the upper end of the lower auger (14) and spaced apart from the outer diameter of the screw (12) at a predetermined distance;
a supply pipe (120) connected in communication with the circular pipe (110);
A sprinkler 130 connected to the supply pipe 120 to supply water;
An air compressor 140 connected to the supply pipe 120 to supply air; and
It is mounted on the inner diameter of the circular pipe 110 at predetermined intervals along the circumferential direction, and sprays air supplied from the air compressor 140 to the circular pipe 110 via the supply pipe 120 toward the floating soil. In addition, it is composed of a plurality of spray nozzles (150) that spray water supplied from the sprinkler (130) to the circular pipe (110) via the supply pipe (120) toward the floating soil;
A coating layer is applied to the screw 12, and the coating material of the coating layer is 29% by weight of triphenyl propane triglycidyl ether, 22% by weight of hydrocybenzotriazole, 11% by weight of hafnium, 14% by weight of organic acid magnesium, and oxidized magnesium. It is composed of 8% by weight of titanium (TiO2), 11% by weight of aluminum oxide (AIO2), and 5% by weight of solvent, and the coating thickness is 8㎛;
A vibration absorbing part made of rubber is attached to the lower part of the air compressor 140, and the raw material content of the vibration absorbing part is 65% by weight of rubber, 10% by weight of orthonitrile biguanide, 9% by weight of factis, and 9% by weight of carbon black. %, made by mixing 7% by weight of 3C (N-PHENYL-N'-ISOPROPYL- P-PHENYLENEDIAMINE);
A heat dissipation coating is applied to the external case of the air compressor 140, and the composition of the heat dissipation coating agent is 19% by weight of xylene, 42% by weight of dimethylformamide, 8% by weight of chromium oxide, 12% by weight of graphite, and 7% by weight of silicon nitride. % by weight of sodium hydroxide (NaOH), 3% by weight of titanium oxide, and 4% by weight of fumed silica.
In claim 1,
The circular pipe 110 of the injection device 100 includes an upper circular pipe 111 and a lower circular pipe 112 that are communicated with each other, and is stacked in two or more stages. Toe removal device.
In claim 1,
The spray nozzle 150 is:
A screw portion 151 fastened to the circular pipe is formed at one end, and a body portion 152 that is hollow and has a cone shape is formed at the other end in an integrally extending structure,
A plurality of injection holes 153, which are holes through which air and water are finally sprayed, are formed through the body portion 152 at equal intervals along the spiral direction, and a vortex of air and water is induced on the outer surface of the body portion 152. A dust and floating soil removal device for a drilling machine, characterized in that a spiral guide groove (154) is formed to coincide with the plurality of injection holes (153).

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